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Python from Keyword

The Python from keyword is used to import a specific section from a modules, classes or functions. It is a case-sensitive keyword. Without import keyword we cannot use the from because both are interdependent and raise a SyntaxError.

Following is the usage of the Python from keyword −

from <module> import <function>

Where,

• module is the name of the module.
• function is the function we need to import.

Following is a basic example of the Python from keyword −

# Importing specific functions
from math import sqrt, pow
# Using the imported functions
print("Square root of 81 is:", sqrt(81))  
print("5 to the power of 3 is:", pow(5, 3))  

Following is the output of the above code −

Square root of 81 is: 9.0
5 to the power of 3 is: 125.0

When we use from keyword without the import keyword it will raise an SyntaxError.

In the following example we have not used import keyword along with from −

# Importing the datetime class from the datetime module
from datetime  datetime
print(datetime.now()) 

Output

Following is the output of the above code −

File "/home/cg/root/47560/main.py", line 2
    from datetime  datetime
                   ^^^^^^^^
SyntaxError: invalid syntax

We can also import all the functions from a module using from keyword and import followed by asterisk[*].

Here, is an example to import all the functions from a module using from keyword −

from math import *
print("The remainder of 16 when divided by 7 :",remainder(16,7))
print("The sine value of 90:",sin(90))

Output

Following is the output of the above code −

The remainder of 16 when divided by 7 : 2.0
The sine value of 90: 0.8939966636005579

We can also use as keyword along with from to make a selected name for a particular function.

Following is an example of, usage of from keyword along with as keyword −

# Importing a class and renaming it
from datetime import datetime as dt
# Using the renamed class
print("Current date and time:", dt.now()) 

Output

Following is the output of the above code −

Current date and time: 2024-08-07 11:54:06.534770

python_keywords.htm

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